Ta có : 1/2>1/3
1/2>1/30
1/2>1/32
1/2>1/35
1/2>1/45
1/2>1/47
1/2>1/50
=>(1/3+1/30+1/32+1/35+1/45+1/47+1/50)<(1/2+1/2+1/2+1/2+1/2+1/2+1/2)
=>(1/3+1/30+1/32+1/35+1/45+1/47+1/50)<1/2
CMR:1/3+ 1/30+ 1/32+ 1/35+ 1/45+ 1/47+1/50 <1/2
CMR:1/3+1/30+1/32+1/35+1/45+1/47+1/50<1/2
Chứng minh rằng\(\frac{1}{3}\)+ \(\frac{1}{30}\) + \(\frac{1}{32}\) + \(\frac{1}{35}\) + \(\frac{1}{45}\) + \(\frac{1}{47}\) + \(\frac{1}{50}\) < \(\frac{1}{2}\)
\(CMR:\frac{1}{3}+\frac{1}{30}+\frac{1}{32}+\frac{1}{45}+\frac{1}{47}+\frac{1}{50}< \frac{1}{2}\)
chứng minh rằng: 1/3+1/31+1/35+1/37+1/47+1/53+1/61<1/2
Chứng minh rằng:
1/3 + 1/31 + 1/35 + 1/37 + 1/47 + 1/53 + 1/61<1/2
Chứng minh rằng:
1/3 + 1/31 + 1/35 + 1/37 + 1/47 + 1/53 + 1/61< 1/2
chứng minh rằng 1/3+1/35+1/37+1/47+1/53+1/61
Chứng minh rằng
1/3+ 1/31+1/35+1/37+1/47+1/53+1/61<1/2
